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Mergers and Acquisitions - Narratives (Details) - USD ($)
9 Months Ended 12 Months Ended
Jul. 02, 2020
Mar. 13, 2020
Sep. 30, 2020
Dec. 31, 2019
Mar. 05, 2020
Business Acquisition [Line Items]          
Preferred Stock, Dividend Rate, Percentage     6.75% 6.75%  
Senior Notes due 2024 [Member]          
Business Acquisition [Line Items]          
Debt instrument, interest rate, stated percentage     7.00%    
Senior Notes Due 2025 [Member]          
Business Acquisition [Line Items]          
Debt instrument, interest rate, stated percentage     8.00%    
Senior Notes due 2023 [Member]          
Business Acquisition [Line Items]          
Debt instrument, interest rate, stated percentage     7.25%    
Senior Notes due 2023 [Member] | Cincinnati Bell Inc. [Member]          
Business Acquisition [Line Items]          
Debt instrument, interest rate, stated percentage     7.25%    
Senior Notes Due 2028 [Member] | Cincinnati Bell Telephone Company LLC (CBT) [Member]          
Business Acquisition [Line Items]          
Debt instrument, interest rate, stated percentage     6.30%    
Brookfield Infrastructure Group [Member]          
Business Acquisition [Line Items]          
Common shares price per share as stock consideration         $ 14.50
Termination fee   $ 24,800,000      
MIP Merger [Member]          
Business Acquisition [Line Items]          
Common shares price per share as stock consideration   $ 15.50      
MIP Merger [Member] | Senior Notes due 2024 [Member]          
Business Acquisition [Line Items]          
Aggregate cash payment on pro rata basis $ 2,812,500        
MIP Merger [Member] | Senior Notes Due 2025 [Member]          
Business Acquisition [Line Items]          
Aggregate cash payment on pro rata basis $ 1,050,000